Beeta

Beetas are Critters that usually live close to their hive. They can be pacified by filling their room with Carbon Dioxide so they will fall asleep. Their lifespan is very limited at the Age of 5, but their hive will provide a replacement every cycle.

Beetas are supposed to sting (taking 19 to take down a single duplicant, and dying shortly after, similar to real life social bees), but currently do not. But you can encounter a situation, that after reloading game, if your duplicant is in the range of Beetas, they attack him, even if he is in lead suit.

Unlike most critters, on death, a Beeta turns into 1000g of solid Nuclear Waste.

Radioactivity
In addition to their aggressiveness, Beetas pose a significant radioactive hazard, as just one puts out over 280 rads/cycle, which can add up with 3 per hive and more rads from the Beetinys (47 rads/cycle) and sometimes the hive itself.

Beetiny
A Beetiny, the larval stage of a Beeta, can only crawl along the ground, being unable to jump up or down 1 tile and unable to attack. It will pace continuously back and forth near the hive. Upon reaching age 2, it will turn into a Beeta if there is a nearby Beeta Hive. If instead are no Beeta Hives around on nightfall, it will turn into a Beeta Hive that matures in 3 cycles.

Unlike the mature Beeta, Beetinys are wranglable.

Diet and Pacification
Beetas fly around gathering uranium ore to feed into their hives that will convert it slowly into enriched uranium and nuclear waste

If carbon dioxide is present, Beetas and Beetinys will enter a sleeping state and consume it at 100g/s. This allows for preventing stings when harvesting Enriched Uranium from a Beeta Hive.

Beetinys can be prevented from sleeping in this manner by submerging them in a small amount of liquid, allowing them to grow up normally with constant sleeping, and concentrating of Beetas into a nearby sleeping spot for radiation harvesting.